22020021200 has 60 divisors (see below), whose sum is σ = 52919886720. Its totient is φ = 8805214080.

The previous prime is 22020021197. The next prime is 22020021203. The reversal of 22020021200 is 212002022.

It is an interprime number because it is at equal distance from previous prime (22020021197) and next prime (22020021203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020021203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1644131 + ... + 1657469.

It is an arithmetic number, because the mean of its divisors is an integer number (881998112).

Almost surely, 2^22020021200 is an apocalyptic number.

22020021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020021200 is an abundant number, since it is smaller than the sum of its proper divisors (30899865520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020021200 is a wasteful number, since it uses less digits than its factorization.

22020021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17484 (or 17473 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22020021200 its reverse (212002022), we get a palindrome (22232023222).

The spelling of 22020021200 in words is "twenty-two billion, twenty million, twenty-one thousand, two hundred".